Memory disclosure via unchecked Bluetooth result bounds
Published Mar 24, 2023 · Updated Feb 25, 2025
Out-of-bounds read in Android 13 Bluetooth allows local users with System privileges to disclose process memory without interaction. The btm_read_link_quality_complete function in btm_acl.cc handles a link-quality completion result without the required bounds check and reads beyond the intended buffer. Exploitation requires System-level code execution and Bluetooth access; the reported consequence is memory disclosure, not modification or service interruption.
Summary
What happened
Out-of-bounds read in Android 13 Bluetooth allows local users with System privileges to disclose process memory without interaction. The btm_read_link_quality_complete function in btm_acl.cc handles a link-quality completion result without the required bounds check and reads beyond the intended buffer. Exploitation requires System-level code execution and Bluetooth access; the reported consequence is memory disclosure, not modification or service interruption.
The record
- CVE
- CVE-2023-20987
- Published
- Mar 24, 2023
- Updated
- Feb 25, 2025
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-125, T1533
- Attack vector
- adjacent
- Privileges
- admin
Timeline
How it unfolded
- Mar 24, 2023CVE publishedPublication date reported by the CVE source.
- Feb 25, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=Android-13
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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